131944750564 has 135 divisors (see below), whose sum is σ = 271499813235. Its totient is φ = 56099094480.

The previous prime is 131944750541. The next prime is 131944750571. The reversal of 131944750564 is 465057449131.

The square root of 131944750564 is 363242.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1670186677 + ... + 1670186755.

Almost surely, 2^131944750564 is an apocalyptic number.

131944750564 is the 363242-nd square number.

It is an amenable number.

131944750564 is an abundant number, since it is smaller than the sum of its proper divisors (139555062671).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131944750564 is an frugal number, since it uses more digits than its factorization.

131944750564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

Multiplying 131944750564 by its sum of digits (49), we get a square (6465292777636 = 2542694²).

The spelling of 131944750564 in words is "one hundred thirty-one billion, nine hundred forty-four million, seven hundred fifty thousand, five hundred sixty-four".